This repository contains the VSAs (Verification summary attestations) for GKE VM images. The subfolder structure follows the pattern -

<VM_IMAGE_PROJECT_ID>:<VM_IMAGE_PROJECT_NUMBER>/<VM_IMAGE_NAME>:<VM_IMAGE_ID>.intoto.jsonl

For eg: VSA for - gke-master-images/gke-1288-gke1166000-cos-109-17800-147-54-c-pre is stored at - gke-master-images:78064567238/gke-1288-gke1166000-cos-109-17800-147-54-c-pre:7627254251642584359.intoto.jsonl where 78064567238 is the Project number & 7627254251642584359 is GCE VM image ID.